Abstract: Nickel-chromium stainless steel is of austenitic composition specially controlled to enable achieving resistance to elevated-temperature oxidation and corrosion at desirably economical levels of alloy content as low as 10% chromium and 10% nickel. Oxidation and corrosion resistant characteristics of the steel particularly include resistance to air-water atmospheres and gasoline exhaust atmospheres that are cyclically heated and cooled with heating to temperatures as high as 1800.degree. F. and cooling to room temperature. Steel has special utility for automotive exhaust train components and is generally useful for cyclically heated structural articles.

Abstract: An improvement in the process of flotation of sulfide minerals from basic gangue involving employing in association with a collector an alkylamidohydroxylated quaternary amine salt.

Abstract: High-strength, heat-resistant and corrosion-resistant castings, e.g., gas turbine blades, are composed of monovariant nickel-chromium-molybdenum basic eutectic alloy composition directionally solidified in microstructure having lamellar fibrous phase dispersed in alloy matrix.

Abstract: Prealloyed powders, particularly of compositions which are difficult to work by conventional means, are subjected to forces such that strain energy is imparted thereto by virtue of which the prealloyed powders manifest low flow stress and a high degree of thermoplasticity.